Reye Syndrome

Reye Syndrome is a rare but serious condition that affects the brain and liver. It usually occurs in children recovering from a viral infection like the flu or chickenpox. The syndrome causes sudden swelling in the brain, leading to symptoms such as vomiting, confusion, and sometimes seizures or loss of consciousness. At the same time, the liver stops working properly, which can cause dangerous chemical imbalances in the body. This condition can progress quickly and requires urgent medical attention to prevent severe complications or death.

Reye Syndrome is an acute, potentially fatal disorder characterized by encephalopathy and microvesicular fatty infiltration of the liver. It typically follows a viral illness, especially when children are treated with aspirin, which is strongly associated with its pathogenesis. The core pathology involves mitochondrial dysfunction leading to impaired fatty acid metabolism and accumulation of toxic metabolites. Clinically, it presents with progressive neurological deterioration, including altered mental status and increased intracranial pressure, alongside hepatic dysfunction without significant inflammation. The syndrome is significant due to its rapid progression and high mortality if not promptly recognized and managed.